@inproceedings{daguang2016estimates,
title={ Estimates of the gaps between consecutive eigenvalues of Laplacian},
author={Daguang Chen, Hongcang Yang, and Tao Zheng},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20161230151859950661699},
booktitle={Pacific J. Math. },
year={2016},
}
Daguang Chen, Hongcang Yang, and Tao Zheng. Estimates of the gaps between consecutive eigenvalues of Laplacian. 2016. In Pacific J. Math. . http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20161230151859950661699.